问题
选择题
The moment we heard of the accident, we ____ the work to rescue those trapped in the mine.
A．set off
B．set down
C．set back
D．set about
答案
答案：D
搜题请搜索小程序“爱下问搜题”
The moment we heard of the accident, we ____ the work to rescue those trapped in the mine.
A．set off
B．set down
C．set back
D．set about
答案：D